Rotary pump



Dec. 7 1926.

J.. KLINGE ROTARY PUMP Filed August 11, 1924 2 sheets-sheet 1 j@ w/V 39, n 0 .07 Q w l S .t e e h s 2 4 2 9 1 EPL GUl NP@ .I s LMu KAMb .MAJRd e l .1 F

Dec. 7 1926.

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` Patented Dec. -7, 1926.

STAT S KLINGE, OF DUBUQUE, IOWA, ASSGNO'R TO SCHMID MANUFACTURD'G C0.,0F DUBUQUE, IOWA, A COPARTNERSHIP COMPOSED F B. C. SGHMID AND F.WSCHMID. y

(ROTARY PUMP.

Application led August 11,

Thisl invention relates to a rotary force Pump' It 1s an ob]ect of th1sinvention to provide a novel rotary force pump comprising a plurality ofunits having a common inlet and exhaust with branches leading to thedifferent units and means for controlling the inletv and exhaust of eachunit in order that one Vith these and other objects in view' which willbecome more apparent in the fol- Y lowing description and disclosures,this invention comprises the novel structure and combinationshereinafter described and more particularly pointed out and defined inthe appended claims.

vIn the accompanying drawings which illustrate a preferred embodiment ofthis invention and in which similar reference numerals referto similarfeatures in the different views:

Figure 1 is a longitudinal sectional view through the rotary pumpinvolving this invention. n.

Figure 2 is an enlarged .sectional view upon the lineA 2 2 of Figure 1.

Figure 3 is a top plan view of the pump. Figure 4 is a fragmentarysectional view through thedrivingshaft rotors and bearings.

Figure 5 is a sectional viewl substantially upon the line 5-5 of-Figure1.

AFigures 6, 7 and 8 are views similar toFig-' ure 5 but showing therotor in different positions, v

Referring now to the drawings there is shown a housing comprising twosections 1 and 2 secured together. with a partition 3 between Saidsections. The outer end walls ofthe two' sections are provided withaligned bearings 4 and 5 for journalling a shaft 6. Each housing sectionhas a cylindrical chamber 7 concentric.with the shaft Y6. Above y each`chamberthere is an extension 7 'embodying a central slideway 8, andlateral inlet and outlet chambers9 and 10. This construction'of section2 is clearly shown in` Figures 5 to 8;the construction of section 1being identical.,

. A cover V`11 ;1s secured over the top-of the` housing, and an inlet orluidsupply pipe' 4having I branches 13a and 13b (Figure 3) which ex-`walls of the slideway 8. The valve proyided with depending side flanges21 that close these ports, and an oblique passage 22 that is adapted toregister in a certain posi- 1924. Serial N0. 731,270.

12,- v(Fig-ure 3) having a forked end comprising the branches 12 and l2bwhich extend through the cover and respectively coinv municate with theintake passages 9 fur-I nishes the means for conveying the fluid to thepump sections. An exhaust pipe 13 a forked endv comprising the tendthrough the cover and com unicate with-the exhaust passages 10 furnis esthe means for conducting the fluid from thev pump.

Eccentrics 14 are` secured upon the shaft 6, one eccentric is located inthe chamber of each housing section; A rotor 15 is mounted upon cacheccentric. Each rotor has an upwardly extending division plate 16 that fis provided with a cylindrical head 17 that fits 1n a cylindricalbearingformed in the lower surface of a slide valve 18 which re-4 ciprocates inthe slideway 8. The d iyision plate 16 and slide valve 18 serve todivide veach chamber into an intake compartment and an -exhaustcompartment.v

Each sliding valve 18 also controls an` inlet port 19 leading fromtheinlet passage 9, and an exhaust port 20 lea'dinginto the exhaustpassage 10. These ports are in the 18 is tion withl the exhaust port asshown in Figure 7. l

In referring to Figure 1, .itlwill benoted that when one eccentric 14 isat the bottom of its stroke, the other eccentric is at the upper limitsof its throw, consequently the two pumpunits act alternately. In'referrin to Figures 5 to-8 it willrbe observed that when the intake port19 is open the extoris at its lowest point as shown infFigure 7. Whenthe rotor travels'upwadly, the'l inlet port` will be 1gradually openedand the exhaust port will gradually be closed.

In Figure 4, there is illustrated a novel method of lubricating such apump. In referring "to Asaid figure it will be noted that the shaft 6has. a central-duct 23 which exy i tends from its outer end into thefarther.'

unit, ducts 24 exten-d from the duct l23 through the eccentrics to theinner peripheriesof the rotors 15. A grease cup or oil can 25 is securedin the outer end of theduct 23 for supplying oil tothe rotors. Cenftrifugal force will cause thefv oil totravel through the ducts 24 as isapparent. Y

It will Abe appreciated that this cutoff -prevents the rotor of one unitwhen in downward action from robbing 'the other unit in eitherextracting the liquid therefrom or dissipating the vacuum or suction. f

I am aware that many changes may be made, and numerous details ofconstruction may be varied through -a Wide range, without departing`from the principles of this invention, and I therefore do not purposelimiting the patent granted hereon other- IWise than necessitated by theprior art.

I claim as my invention:

0 l. In a rotary pump, .a housing comprismg a pair of separablesections, an eccentrlc rotor 1n each sectlon, ,anv extension on eachsection embodying a central slideway and lateral inlet and outletchambers, a division plate connected to the eccentric of each'rotor, aright line' sliding valve in each central slideway pivotedl to itsdivision plate and controlling ports communicating with said inlet andexit chambers, and common inlet and outlet pipes for said chambers.

2. In a rotary p`ump, a housing comprising a pair of separable sections,an eccentric rotor in each section, an extension on veach sectlonembo'dylng a central slideway andv lateral inlet and outlet chambers, adivision plate connected to the eccentric of each rotor, a right linesliding valve in each central slideway pivoted to its division plate andtion of said ports and of said valve being so related that the outletport is open except*- at the very end of the exhaust cycle-.

4. In a rotary ump provided with a slideway, ain eccentrlcrotor, a rightline slide valve'in said slideway connected to said rotor and having,formed through'it a passage to serve for Afluid delivery, inlet andoutlet ports being formed in the Walls of Said slideway, the passage insaid valve and theout let port being so positioned and inter-relatedthat said outlet port is openeXcept at the very end of the cycle of therotor. v

5. In a rotary pump provided with a slideway having inlet and outletports in the walls thereof, an eccentric rotor, a right line slide valveadapted to reciprocate in said slideway and having a passagetherethrough to serve for fluid delivery, and a division plate'`connecting said rotor and said slide valve, said valve, 'passage andports'being so positioned and inter-related that at the .end of thecycle of the rotor the' inlet port is wide open and the outlet portentirely closed.

In testimony whereof I have hereunto subscribed my name. Y

- JOHN KLINGE.

